./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69f20c6619059452dea710c235d91f0e8ca980fcacc48c7e37668ab8a6397c50 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:19,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:19,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:19,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:19,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:19,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:19,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:19,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:19,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:19,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:19,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:19,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:19,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:19,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:19,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:19,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:19,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:19,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:19,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:19,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:19,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:19,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:19,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:19,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:19,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:19,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:19,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:19,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:19,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:19,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:19,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:19,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:19,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:19,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:19,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:19,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:19,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:19,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:19,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:19,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:19,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:19,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:19,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:19,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:19,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:19,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:19,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:19,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:19,602 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:19,602 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:19,602 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:19,603 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:19,604 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:19,604 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:19,604 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:19,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:19,605 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:19,605 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:19,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:19,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:19,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:19,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:19,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:19,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:19,606 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:19,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:19,608 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:19,608 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:19,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:19,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:19,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:19,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:19,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:19,610 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:19,610 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69f20c6619059452dea710c235d91f0e8ca980fcacc48c7e37668ab8a6397c50 [2022-02-21 04:16:19,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:19,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:19,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:19,828 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:19,842 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:19,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2022-02-21 04:16:19,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae65c54a1/03761c6dadc344f78f64985e6120f9a2/FLAG94eda6154 [2022-02-21 04:16:20,362 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:20,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2022-02-21 04:16:20,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae65c54a1/03761c6dadc344f78f64985e6120f9a2/FLAG94eda6154 [2022-02-21 04:16:20,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae65c54a1/03761c6dadc344f78f64985e6120f9a2 [2022-02-21 04:16:20,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:20,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:20,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:20,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:20,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:20,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225c4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20, skipping insertion in model container [2022-02-21 04:16:20,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:20,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:21,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c[11292,11305] [2022-02-21 04:16:21,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:21,193 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:21,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c[11292,11305] [2022-02-21 04:16:21,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:21,322 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:21,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21 WrapperNode [2022-02-21 04:16:21,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:21,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:21,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:21,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:21,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,436 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 96, statements flattened = 723 [2022-02-21 04:16:21,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:21,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:21,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:21,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:21,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:21,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:21,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:21,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:21,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:21,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:21,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:21,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:21,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:21,751 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:21,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:22,526 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:22,537 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:22,538 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:22,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:22 BoogieIcfgContainer [2022-02-21 04:16:22,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:22,546 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:22,547 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:22,549 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:22,552 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:22,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:20" (1/3) ... [2022-02-21 04:16:22,553 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e69a792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:22, skipping insertion in model container [2022-02-21 04:16:22,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:22,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21" (2/3) ... [2022-02-21 04:16:22,554 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e69a792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:22, skipping insertion in model container [2022-02-21 04:16:22,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:22,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:22" (3/3) ... [2022-02-21 04:16:22,555 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2022-02-21 04:16:22,587 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:22,588 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:22,588 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:22,588 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:22,588 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:22,588 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:22,588 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:22,588 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:22,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 184 states, 183 states have (on average 1.366120218579235) internal successors, (250), 183 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:22,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2022-02-21 04:16:22,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:22,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:22,668 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:22,669 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:22,669 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:22,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 184 states, 183 states have (on average 1.366120218579235) internal successors, (250), 183 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:22,693 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2022-02-21 04:16:22,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:22,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:22,695 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:22,695 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:22,702 INFO L791 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; 53#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 161#L916true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 79#L909true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 122#L924true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 120#L517true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 91#L488true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 98#L935true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 123#L744-2true [2022-02-21 04:16:22,702 INFO L793 eck$LassoCheckResult]: Loop: 123#L744-2true assume !false; 103#L745true assume test_~splverifierCounter~0#1 < 4; 124#L746true test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 7#L754true assume !(0 != test_~tmp~8#1); 87#L754-2true test_~tmp___0~1#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 176#L764true assume !(0 != test_~tmp___0~1#1); 136#L764-2true test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 126#L774true assume 0 != test_~tmp___2~0#1; 119#L780-2true assume { :begin_inline_timeShift } true; 45#L546true assume !(0 != ~pumpRunning~0); 60#L546-2true assume !(0 != ~systemActive~0); 131#L553-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 179#L843-3true __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 174#L946true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 116#L946-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 85#L563true assume { :end_inline_timeShift } true; 123#L744-2true [2022-02-21 04:16:22,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:22,710 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:22,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:22,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246773025] [2022-02-21 04:16:22,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:22,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,840 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,897 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:22,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:22,900 INFO L85 PathProgramCache]: Analyzing trace with hash 57947274, now seen corresponding path program 1 times [2022-02-21 04:16:22,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:22,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032495953] [2022-02-21 04:16:22,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:22,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,926 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,936 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:22,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:22,938 INFO L85 PathProgramCache]: Analyzing trace with hash -104340109, now seen corresponding path program 1 times [2022-02-21 04:16:22,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:22,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516684082] [2022-02-21 04:16:22,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:22,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:23,068 INFO L290 TraceCheckUtils]: 0: Hoare triple {192#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; {194#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:23,068 INFO L290 TraceCheckUtils]: 1: Hoare triple {194#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {194#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:23,069 INFO L290 TraceCheckUtils]: 2: Hoare triple {194#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {194#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:23,069 INFO L290 TraceCheckUtils]: 3: Hoare triple {194#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {195#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:23,070 INFO L290 TraceCheckUtils]: 4: Hoare triple {195#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; {196#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} is VALID [2022-02-21 04:16:23,070 INFO L290 TraceCheckUtils]: 5: Hoare triple {196#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,071 INFO L290 TraceCheckUtils]: 6: Hoare triple {197#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,072 INFO L290 TraceCheckUtils]: 7: Hoare triple {197#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,072 INFO L290 TraceCheckUtils]: 8: Hoare triple {197#(not (= 0 ~systemActive~0))} assume !false; {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,073 INFO L290 TraceCheckUtils]: 9: Hoare triple {197#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,073 INFO L290 TraceCheckUtils]: 10: Hoare triple {197#(not (= 0 ~systemActive~0))} test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,074 INFO L290 TraceCheckUtils]: 11: Hoare triple {197#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~8#1); {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,074 INFO L290 TraceCheckUtils]: 12: Hoare triple {197#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,075 INFO L290 TraceCheckUtils]: 13: Hoare triple {197#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,075 INFO L290 TraceCheckUtils]: 14: Hoare triple {197#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,076 INFO L290 TraceCheckUtils]: 15: Hoare triple {197#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,076 INFO L290 TraceCheckUtils]: 16: Hoare triple {197#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,077 INFO L290 TraceCheckUtils]: 17: Hoare triple {197#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {197#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,078 INFO L290 TraceCheckUtils]: 18: Hoare triple {197#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {193#false} is VALID [2022-02-21 04:16:23,078 INFO L290 TraceCheckUtils]: 19: Hoare triple {193#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {193#false} is VALID [2022-02-21 04:16:23,079 INFO L290 TraceCheckUtils]: 20: Hoare triple {193#false} __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; {193#false} is VALID [2022-02-21 04:16:23,079 INFO L290 TraceCheckUtils]: 21: Hoare triple {193#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; {193#false} is VALID [2022-02-21 04:16:23,080 INFO L290 TraceCheckUtils]: 22: Hoare triple {193#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {193#false} is VALID [2022-02-21 04:16:23,080 INFO L290 TraceCheckUtils]: 23: Hoare triple {193#false} assume { :end_inline_timeShift } true; {193#false} is VALID [2022-02-21 04:16:23,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:23,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:23,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516684082] [2022-02-21 04:16:23,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516684082] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:23,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:23,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:23,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282552689] [2022-02-21 04:16:23,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:23,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:23,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:23,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:23,197 INFO L87 Difference]: Start difference. First operand has 184 states, 183 states have (on average 1.366120218579235) internal successors, (250), 183 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:23,532 INFO L93 Difference]: Finished difference Result 181 states and 236 transitions. [2022-02-21 04:16:23,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:23,533 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,553 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:23,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 181 states and 236 transitions. [2022-02-21 04:16:23,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2022-02-21 04:16:23,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 181 states to 171 states and 226 transitions. [2022-02-21 04:16:23,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2022-02-21 04:16:23,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2022-02-21 04:16:23,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 226 transitions. [2022-02-21 04:16:23,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:23,569 INFO L681 BuchiCegarLoop]: Abstraction has 171 states and 226 transitions. [2022-02-21 04:16:23,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 226 transitions. [2022-02-21 04:16:23,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-02-21 04:16:23,589 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:23,591 INFO L82 GeneralOperation]: Start isEquivalent. First operand 171 states and 226 transitions. Second operand has 171 states, 171 states have (on average 1.3216374269005848) internal successors, (226), 170 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,591 INFO L74 IsIncluded]: Start isIncluded. First operand 171 states and 226 transitions. Second operand has 171 states, 171 states have (on average 1.3216374269005848) internal successors, (226), 170 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,593 INFO L87 Difference]: Start difference. First operand 171 states and 226 transitions. Second operand has 171 states, 171 states have (on average 1.3216374269005848) internal successors, (226), 170 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:23,597 INFO L93 Difference]: Finished difference Result 171 states and 226 transitions. [2022-02-21 04:16:23,598 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 226 transitions. [2022-02-21 04:16:23,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:23,599 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:23,599 INFO L74 IsIncluded]: Start isIncluded. First operand has 171 states, 171 states have (on average 1.3216374269005848) internal successors, (226), 170 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 171 states and 226 transitions. [2022-02-21 04:16:23,600 INFO L87 Difference]: Start difference. First operand has 171 states, 171 states have (on average 1.3216374269005848) internal successors, (226), 170 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 171 states and 226 transitions. [2022-02-21 04:16:23,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:23,604 INFO L93 Difference]: Finished difference Result 171 states and 226 transitions. [2022-02-21 04:16:23,604 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 226 transitions. [2022-02-21 04:16:23,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:23,605 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:23,605 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:23,605 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:23,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.3216374269005848) internal successors, (226), 170 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 226 transitions. [2022-02-21 04:16:23,610 INFO L704 BuchiCegarLoop]: Abstraction has 171 states and 226 transitions. [2022-02-21 04:16:23,610 INFO L587 BuchiCegarLoop]: Abstraction has 171 states and 226 transitions. [2022-02-21 04:16:23,610 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:23,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 226 transitions. [2022-02-21 04:16:23,611 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2022-02-21 04:16:23,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:23,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:23,612 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:23,612 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:23,612 INFO L791 eck$LassoCheckResult]: Stem: 552#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; 469#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 470#L916 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 495#L909 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 496#L924 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 534#L517 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 512#L488 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 513#L935 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 501#L744-2 [2022-02-21 04:16:23,612 INFO L793 eck$LassoCheckResult]: Loop: 501#L744-2 assume !false; 521#L745 assume test_~splverifierCounter~0#1 < 4; 522#L746 test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 390#L754 assume !(0 != test_~tmp~8#1); 392#L754-2 test_~tmp___0~1#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 508#L764 assume !(0 != test_~tmp___0~1#1); 541#L764-2 test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 537#L774 assume 0 != test_~tmp___2~0#1; 389#L780-2 assume { :begin_inline_timeShift } true; 460#L546 assume !(0 != ~pumpRunning~0); 461#L546-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 477#L604 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret28#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 481#L578-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 526#L570-3 assume { :end_inline_processEnvironment__wrappee__base } true; 410#L578-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 411#L604-1 assume { :end_inline_processEnvironment } true; 412#L553-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 540#L843-3 __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 553#L946 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 456#L946-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 500#L563 assume { :end_inline_timeShift } true; 501#L744-2 [2022-02-21 04:16:23,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:23,613 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:23,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:23,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924833199] [2022-02-21 04:16:23,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:23,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:23,622 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:23,632 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:23,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:23,632 INFO L85 PathProgramCache]: Analyzing trace with hash -699199049, now seen corresponding path program 1 times [2022-02-21 04:16:23,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:23,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845892078] [2022-02-21 04:16:23,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:23,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:23,646 INFO L290 TraceCheckUtils]: 0: Hoare triple {901#true} assume !false; {901#true} is VALID [2022-02-21 04:16:23,646 INFO L290 TraceCheckUtils]: 1: Hoare triple {901#true} assume test_~splverifierCounter~0#1 < 4; {901#true} is VALID [2022-02-21 04:16:23,646 INFO L290 TraceCheckUtils]: 2: Hoare triple {901#true} test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {901#true} is VALID [2022-02-21 04:16:23,646 INFO L290 TraceCheckUtils]: 3: Hoare triple {901#true} assume !(0 != test_~tmp~8#1); {901#true} is VALID [2022-02-21 04:16:23,646 INFO L290 TraceCheckUtils]: 4: Hoare triple {901#true} test_~tmp___0~1#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {901#true} is VALID [2022-02-21 04:16:23,647 INFO L290 TraceCheckUtils]: 5: Hoare triple {901#true} assume !(0 != test_~tmp___0~1#1); {901#true} is VALID [2022-02-21 04:16:23,647 INFO L290 TraceCheckUtils]: 6: Hoare triple {901#true} test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; {901#true} is VALID [2022-02-21 04:16:23,647 INFO L290 TraceCheckUtils]: 7: Hoare triple {901#true} assume 0 != test_~tmp___2~0#1; {901#true} is VALID [2022-02-21 04:16:23,647 INFO L290 TraceCheckUtils]: 8: Hoare triple {901#true} assume { :begin_inline_timeShift } true; {901#true} is VALID [2022-02-21 04:16:23,648 INFO L290 TraceCheckUtils]: 9: Hoare triple {901#true} assume !(0 != ~pumpRunning~0); {903#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:23,648 INFO L290 TraceCheckUtils]: 10: Hoare triple {903#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {903#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:23,648 INFO L290 TraceCheckUtils]: 11: Hoare triple {903#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret28#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; {903#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:23,649 INFO L290 TraceCheckUtils]: 12: Hoare triple {903#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {902#false} is VALID [2022-02-21 04:16:23,649 INFO L290 TraceCheckUtils]: 13: Hoare triple {902#false} assume { :end_inline_processEnvironment__wrappee__base } true; {902#false} is VALID [2022-02-21 04:16:23,649 INFO L290 TraceCheckUtils]: 14: Hoare triple {902#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {902#false} is VALID [2022-02-21 04:16:23,649 INFO L290 TraceCheckUtils]: 15: Hoare triple {902#false} assume { :end_inline_processEnvironment } true; {902#false} is VALID [2022-02-21 04:16:23,649 INFO L290 TraceCheckUtils]: 16: Hoare triple {902#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {902#false} is VALID [2022-02-21 04:16:23,650 INFO L290 TraceCheckUtils]: 17: Hoare triple {902#false} __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; {902#false} is VALID [2022-02-21 04:16:23,650 INFO L290 TraceCheckUtils]: 18: Hoare triple {902#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; {902#false} is VALID [2022-02-21 04:16:23,650 INFO L290 TraceCheckUtils]: 19: Hoare triple {902#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {902#false} is VALID [2022-02-21 04:16:23,650 INFO L290 TraceCheckUtils]: 20: Hoare triple {902#false} assume { :end_inline_timeShift } true; {902#false} is VALID [2022-02-21 04:16:23,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:23,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:23,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845892078] [2022-02-21 04:16:23,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845892078] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:23,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:23,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:23,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109033722] [2022-02-21 04:16:23,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:23,652 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:23,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:23,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:23,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:23,653 INFO L87 Difference]: Start difference. First operand 171 states and 226 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:23,915 INFO L93 Difference]: Finished difference Result 235 states and 300 transitions. [2022-02-21 04:16:23,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:23,916 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,928 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:23,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 235 states and 300 transitions. [2022-02-21 04:16:23,936 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2022-02-21 04:16:23,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 235 states to 235 states and 300 transitions. [2022-02-21 04:16:23,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 235 [2022-02-21 04:16:23,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 235 [2022-02-21 04:16:23,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 235 states and 300 transitions. [2022-02-21 04:16:23,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:23,942 INFO L681 BuchiCegarLoop]: Abstraction has 235 states and 300 transitions. [2022-02-21 04:16:23,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states and 300 transitions. [2022-02-21 04:16:23,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2022-02-21 04:16:23,947 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:23,948 INFO L82 GeneralOperation]: Start isEquivalent. First operand 235 states and 300 transitions. Second operand has 235 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 234 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,948 INFO L74 IsIncluded]: Start isIncluded. First operand 235 states and 300 transitions. Second operand has 235 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 234 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,949 INFO L87 Difference]: Start difference. First operand 235 states and 300 transitions. Second operand has 235 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 234 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:23,953 INFO L93 Difference]: Finished difference Result 235 states and 300 transitions. [2022-02-21 04:16:23,953 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 300 transitions. [2022-02-21 04:16:23,954 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:23,954 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:23,955 INFO L74 IsIncluded]: Start isIncluded. First operand has 235 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 234 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 235 states and 300 transitions. [2022-02-21 04:16:23,955 INFO L87 Difference]: Start difference. First operand has 235 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 234 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 235 states and 300 transitions. [2022-02-21 04:16:23,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:23,959 INFO L93 Difference]: Finished difference Result 235 states and 300 transitions. [2022-02-21 04:16:23,959 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 300 transitions. [2022-02-21 04:16:23,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:23,960 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:23,960 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:23,960 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 234 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 300 transitions. [2022-02-21 04:16:23,964 INFO L704 BuchiCegarLoop]: Abstraction has 235 states and 300 transitions. [2022-02-21 04:16:23,965 INFO L587 BuchiCegarLoop]: Abstraction has 235 states and 300 transitions. [2022-02-21 04:16:23,965 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:23,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 235 states and 300 transitions. [2022-02-21 04:16:23,966 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2022-02-21 04:16:23,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:23,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:23,966 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:23,967 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:23,967 INFO L791 eck$LassoCheckResult]: Stem: 1319#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; 1224#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1225#L916 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1251#L909 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1252#L924 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1297#L517 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1271#L488 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1272#L935 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1259#L744-2 [2022-02-21 04:16:23,967 INFO L793 eck$LassoCheckResult]: Loop: 1259#L744-2 assume !false; 1282#L745 assume test_~splverifierCounter~0#1 < 4; 1283#L746 test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 1145#L754 assume !(0 != test_~tmp~8#1); 1147#L754-2 test_~tmp___0~1#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 1262#L764 assume !(0 != test_~tmp___0~1#1); 1304#L764-2 test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 1300#L774 assume 0 != test_~tmp___2~0#1; 1144#L780-2 assume { :begin_inline_timeShift } true; 1214#L546 assume !(0 != ~pumpRunning~0); 1215#L546-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1232#L604 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret28#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 1234#L578-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret40#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 1220#L883-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 1221#L888-1 isHighWaterLevel_#t~ret40#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret40#1;havoc isHighWaterLevel_#t~ret40#1; 1169#L723-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1170#L723-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1239#L729-1 processEnvironment__wrappee__methaneQuery_#t~ret28#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~4#1 := processEnvironment__wrappee__methaneQuery_#t~ret28#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret28#1; 1216#L582-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1217#L570-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1165#L578-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1166#L604-1 assume { :end_inline_processEnvironment } true; 1346#L553-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1324#L843-3 __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 1321#L946 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 1212#L946-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1258#L563 assume { :end_inline_timeShift } true; 1259#L744-2 [2022-02-21 04:16:23,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:23,968 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:23,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:23,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270058163] [2022-02-21 04:16:23,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:23,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:23,976 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:23,986 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:23,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:23,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1287856975, now seen corresponding path program 1 times [2022-02-21 04:16:23,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:23,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093340923] [2022-02-21 04:16:23,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:23,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:23,991 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:23,995 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:23,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:23,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1458632390, now seen corresponding path program 1 times [2022-02-21 04:16:23,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:23,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056765345] [2022-02-21 04:16:23,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:23,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:24,006 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:24,016 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:26,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:26 BoogieIcfgContainer [2022-02-21 04:16:26,715 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:26,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:26,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:26,716 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:26,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:22" (3/4) ... [2022-02-21 04:16:26,721 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:26,761 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:26,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:26,764 INFO L158 Benchmark]: Toolchain (without parser) took 5879.26ms. Allocated memory was 92.3MB in the beginning and 172.0MB in the end (delta: 79.7MB). Free memory was 56.1MB in the beginning and 88.3MB in the end (delta: -32.1MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:26,765 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:26,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.61ms. Allocated memory is still 92.3MB. Free memory was 55.9MB in the beginning and 57.0MB in the end (delta: -1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:26,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.83ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 52.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:26,767 INFO L158 Benchmark]: Boogie Preprocessor took 78.44ms. Allocated memory is still 92.3MB. Free memory was 52.5MB in the beginning and 49.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:26,767 INFO L158 Benchmark]: RCFGBuilder took 1021.92ms. Allocated memory is still 92.3MB. Free memory was 49.6MB in the beginning and 49.1MB in the end (delta: 586.4kB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:26,768 INFO L158 Benchmark]: BuchiAutomizer took 4168.81ms. Allocated memory was 92.3MB in the beginning and 172.0MB in the end (delta: 79.7MB). Free memory was 49.1MB in the beginning and 90.3MB in the end (delta: -41.3MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2022-02-21 04:16:26,768 INFO L158 Benchmark]: Witness Printer took 47.34ms. Allocated memory is still 172.0MB. Free memory was 90.3MB in the beginning and 88.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:26,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.61ms. Allocated memory is still 92.3MB. Free memory was 55.9MB in the beginning and 57.0MB in the end (delta: -1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.83ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 52.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.44ms. Allocated memory is still 92.3MB. Free memory was 52.5MB in the beginning and 49.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1021.92ms. Allocated memory is still 92.3MB. Free memory was 49.6MB in the beginning and 49.1MB in the end (delta: 586.4kB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 4168.81ms. Allocated memory was 92.3MB in the beginning and 172.0MB in the end (delta: 79.7MB). Free memory was 49.1MB in the beginning and 90.3MB in the end (delta: -41.3MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. * Witness Printer took 47.34ms. Allocated memory is still 172.0MB. Free memory was 90.3MB in the beginning and 88.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 235 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 235 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 866 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 866 mSDsluCounter, 544 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 442 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 744]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11c3c33e=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b70a861=0, \result=0, tmp=0, \result=1, tmp=1, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4169219d=0, tmp___2=29, methAndRunningLastTime=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ad2a961=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e2bbf19=29, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@532d6c06=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34d6f6c7=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cbcbf63=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e0607ca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@130b2527=0, tmp=0, head=0, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, \result=0, tmp___0=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 744]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L425] int cleanupTimeShifts = 4; [L538] int pumpRunning = 0; [L539] int systemActive = 1; [L800] int waterLevel = 1; [L801] int methaneLevelCritical = 0; [L929] int methAndRunningLastTime ; [L508] int retValue_acc ; [L509] int tmp ; [L513] FCALL select_helpers() [L514] FCALL select_features() [L515] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); [L515] RET, EXPR valid_product() [L515] tmp = valid_product() [L517] COND TRUE \read(tmp) [L519] FCALL setup() [L520] CALL runTest() [L498] CALL __utac_acc__Specification2_spec__1() [L934] methAndRunningLastTime = 0 [L498] RET __utac_acc__Specification2_spec__1() [L499] CALL test() [L735] int splverifierCounter ; [L736] int tmp ; [L737] int tmp___0 ; [L738] int tmp___1 ; [L739] int tmp___2 ; [L742] splverifierCounter = 0 Loop: [L744] COND TRUE 1 [L746] COND TRUE splverifierCounter < 4 [L752] tmp = __VERIFIER_nondet_int() [L754] COND FALSE !(\read(tmp)) [L762] tmp___0 = __VERIFIER_nondet_int() [L764] COND FALSE !(\read(tmp___0)) [L772] tmp___2 = __VERIFIER_nondet_int() [L774] COND TRUE \read(tmp___2) [L787] CALL timeShift() [L546] COND FALSE !(\read(pumpRunning)) [L553] COND TRUE \read(systemActive) [L555] CALL processEnvironment() [L601] int tmp ; [L604] COND FALSE !(\read(pumpRunning)) [L619] CALL processEnvironment__wrappee__methaneQuery() [L575] int tmp ; [L578] COND TRUE ! pumpRunning [L580] CALL, EXPR isHighWaterLevel() [L715] int retValue_acc ; [L716] int tmp ; [L717] int tmp___0 ; [L721] CALL, EXPR isHighWaterSensorDry() [L880] int retValue_acc ; [L883] COND TRUE waterLevel < 2 [L884] retValue_acc = 1 [L885] return (retValue_acc); [L721] RET, EXPR isHighWaterSensorDry() [L721] tmp = isHighWaterSensorDry() [L723] COND TRUE \read(tmp) [L724] tmp___0 = 0 [L728] retValue_acc = tmp___0 [L729] return (retValue_acc); [L580] RET, EXPR isHighWaterLevel() [L580] tmp = isHighWaterLevel() [L582] COND FALSE !(\read(tmp)) [L588] FCALL processEnvironment__wrappee__base() [L619] RET processEnvironment__wrappee__methaneQuery() [L555] RET processEnvironment() [L561] CALL __utac_acc__Specification2_spec__2() [L939] int tmp ; [L940] int tmp___0 ; [L944] CALL, EXPR isMethaneLevelCritical() [L839] int retValue_acc ; [L842] retValue_acc = methaneLevelCritical [L843] return (retValue_acc); [L944] RET, EXPR isMethaneLevelCritical() [L944] tmp = isMethaneLevelCritical() [L946] COND FALSE !(\read(tmp)) [L962] methAndRunningLastTime = 0 [L561] RET __utac_acc__Specification2_spec__2() [L787] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:26,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)